TRANSFORMER SUBSTATIONS PT Aerial Inherent activities: Picketing Pit digging Placing iron fittings Post planting Massif concreting Laying cables Arrival of aerial line Placement of transformer Low voltage general board (QGBT) Medium and low voltage connections PT Cabin Inherent Activities: Picketing Construction of base and laying slab for monoblock / cabin Placement of fittings placement and electrification of: medium voltage cells, power transformer, general low voltage board (QGBT)